efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679

Analysis

max time kernel
142s
max time network
118s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 04:30

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General

Target

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
Size

10.8MB
MD5

b1a2d6b1d05ffd2ca1724df174da486f
SHA1

0d74a7c916fc4ee151873bbcc0028ad0a711b97b
SHA256

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679
SHA512

4e0e494d2c3227905b6561a26b512d63acb4a12a609b6ce3004cdb687fcf0ad66d3544e99dc6a9f2e5a6dce7c393d0acd1e942500d57a25de173427a344a1185
SSDEEP

196608:CLa6/bEEtnhwf1aDBjuiqzfyXLqkyuU4kPlyj7XFEg/BFU9vI9DMdAQCaCT0BG0E:CBbNSf1athqLyXvyuUc7VZ/5MdSNdF

Score

9^/10

bootkit evasion persistence trojan

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description ioc process

Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description ioc process

Key opened \REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Wine efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
bootkit persistence

Bootkit
T1542.003

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description ioc process

File opened for modification \??\PhysicalDrive0 efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

pid process

1424 efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

pid process

1424 efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

pid process

1424 efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Wine	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

description	ioc	process
File opened for modification	\??\PhysicalDrive0	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

pid	process
1424	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

pid	process
1424	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

pid	process
1424	efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe

C:\Users\Admin\AppData\Local\Temp\efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe
"C:\Users\Admin\AppData\Local\Temp\efea847e29187c87fa162bb8abf60ebe811f37e239ab6686818b53d08d7c2679.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Checks whether UAC is enabled
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1424

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\pcsf.ini
Filesize
20B

MD5
681496ec06a1de0b86c016432b484d1c

SHA1
d7cd30308a7865424124b448638ab2701abacb11

SHA256
50ea92c083a43e75d9ddb9f578c18c146fe5202f208d1e3ee0c047c7b544dea8

SHA512
9626c2013693b6d8dc62a6c26115349f88085f3f90c1b8791d7ce52541fe2f62ccbfad56937d14f762d3960c5dca593f8aa7d6de04b102f5b41a638306d71de0

Download Submit
memory/1424-9-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-7-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-37-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-6-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-38-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-8-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-1-0x00000000759C0000-0x00000000759C1000-memory.dmp

Filesize
4KB

Download
memory/1424-39-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-5-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-4-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-0-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-40-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-41-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-42-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-43-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-44-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download
memory/1424-45-0x0000000000400000-0x0000000003698000-memory.dmp

Filesize
50.6MB

Download